Braid groups and Yang-Baxter relations. As different models in quantum field theory were invented and studied, braid groups began to enter into consideration in the late 1960s and 1970s. In two-dimesional models with soliton fields they found a place through the Yang-Baxter equation in articles by Streater and Wilde [1]} and Fröhlich [2]}, [3]} Related work was published by Klaiber [4]}, Souriau [5]}, Kadanoff and Ceva [6]}, and Wegner [7]}.
